Object: To design a transmission line to transmit 'P' MW at 'q' p.f. (lag) for a
distance of d km long, regulation of line should be x% of receiving end voltage
regulation, efficiency % and corona loss not to exceed 'L' kW/km. Use the
nominal method to re

Control of Active Power and
Current in
Interconnected Power System
NEED OF POWER FLOW CONTROL
Load demand on the system is not constant,
so to fulfill the variable load demand and to
fulfill increased load demand on the system,
Power Flow is controlled an

ALFC Loop
Static Performance of ALFC Loop
Two Area Control System
Effect of ALFC Loop
Assumptions:
1. System is running in its normal state with complete
power balance.
(f, PG= PD+ losses, Wkin)
2. Load demand is increased (New Load)
3. New Kinetic energy